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Finding the Fourth Proportional to 440,075.88, 660,113.76 and 240,287.28

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Solution

The fourth proportional to 440,075.88, 660,113.76 and 240,287.28 is: 360,430.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,075.88 : 660,113.76 = 240,287.28 : x
  2. Step 2: Convert to fraction form
    440,075.88/660,113.76 = 240,287.28/x
  3. Step 3: Cross multiply
    440,075.88x = 660,113.76 × 240,287.28
  4. Step 4: Simplify right side
    440,075.88x = 158,616,939,880.97
  5. Step 5: Solve for x
    x = 158,616,939,880.97/440,075.88
  6. Step 6: Final answer
    x = 360,430.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.